Autobackup-Pro

Each day Autobackup makes a copy of your modified files in a separate folder. You create a list of paths to check, and each day when the program runs it makes a backup copy of all files in those paths that have been modified since the last backup. It also will create diary entries for use by Acute Software's Electronic Diary, so you can see at a glance all the files you worked on in a particular day, week, or month.

Version 3.2 simplifies installation and better handles errors for locked files.

Limitations:

30-day trial